What Is Glaucoma?

What Is Glaucoma?

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Glaucoma refers to a group of eye conditions that damage the optic nerve, which plays a vital role in vision. In many cases, increased eye pressure contributes to this damage. Because the optic nerve carries visual information from the eye to the brain, injury to it can lead to permanent vision loss if not identified early.

For this reason, glaucoma remains one of the leading causes of irreversible blindness worldwide. However, with timely diagnosis and appropriate care, many patients preserve useful vision for life.

Common Signs and Symptoms 

In many cases, glaucoma develops without early warning signs. As a result, routine eye examinations are essential, even when vision seems normal.

When symptoms do occur, they may include:

Because these changes often progress slowly, patients may not notice them right away.

Types of Glaucoma

  • Primary open-angle (most common)

  • Angle-closure (less common, medical emergency)

  • Normal-tension

  • Secondary

Each type requires specific monitoring and treatment.

Risk Factors?

Risk factors include:

  • Elevated eye pressure

  • Family history of glaucoma

  • Diabetes or vascular disease

  • Thin corneas

  • Age over 40

How Is Glaucoma Treated?

While glaucoma cannot be cured, it can be controlled with:

  • Prescription eye drops

  • Laser procedures

  • Minimally invasive glaucoma surgery (MIGS)

  • Traditional surgery in advanced cases

Why Early Detection Matters

Vision loss caused by glaucoma is permanent. However, early diagnosis allows treatment to begin before significant damage occurs. As a result, many patients maintain stable vision throughout their lifetime.

For this reason, comprehensive eye exams remain the most effective way to protect long-term eye health.

Learn More From Trusted Medical Sources

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